pr22895

pr22895

# DP: Catch integer overflows/underflows when parsing corrupt DWARF FORM blocks.

From 12c963421d045a127c413a0722062b9932c50aa9 Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Wed, 28 Feb 2018 11:50:49 +0000
Subject: [PATCH] Catch integer overflows/underflows when parsing corrupt DWARF
 FORM blocks.

	PR 22895
	PR 22893
	* dwarf2.c (read_n_bytes): Replace size parameter with dwarf_block
	pointer.  Drop unused abfd parameter.  Check the size of the block
	before initialising the data field.  Return the end pointer if the
	size is invalid.
	(read_attribute_value): Adjust invocations of read_n_bytes.

Gbp-Pq: Name pr22895.diff